A Thousand Years: Part II

by Vinyl_Wubs

Rating: mature
Tags: Sex, Twilight Sparkle, Princess Celestia, Anthro, Princess Luna, My Little Pony: Friendship is Magic
Length: 8296

Celestia and Luna have had a lot of fun together now that Luna has came out of the closet about her new feature. They decide they should share it with Celestia's prized student Twilight Sparkle. And just in time for Hearts and Hooves day!

Warning: Contains certain fetishes such as Cum Inflation, Three-somes, Futa, and possibly other things. Reader discretion is advised.

Celestia and Luna have had a lot of fun together now that Luna has came out of the closet about her new feature. The only question is, who else should they share it with? The two princesses call Twilight Sparkle to Canterlot to give her a special task that only (Literally anyone really...) she can accomplish. What better present for Hearts and Hooves day than a bonding experience between mentor and student... and mentor's sister.

Published 2014-05-27 20:20:03 UTC
Last updated 2014-06-27 15:41:52 UTC

Chapter 1: Damn It Spike!

“So what brings you here tonight, Twilight?” Celestia said, looking up from her drink.

“I just wanted to talk for a little bit.” I said.

“Oh? You only wanted to talk? Shame, I had other plans..” Celestia took a drink before saying, “But what did you wish to speak with me about, faithful student?”

“Well, I’ve been wanting to go on a vacation… away from everything, just so I could relax… but I felt I might need to tell you where I’m going…” I started.

“Well, where are you going?” Celestia asked.

“I was planning on going to the beach…” I said.

Celestia laughed, saying “Silly pony, you don’t need my confirmation for that! Just go and have fun, I know I would if I could…”

“But… you’re one of the princesses… who would question you if you wanted to go on a vacation?” I asked.

“Well, if I were to go on vacation, I would probably have to plan it about a month before, and it couldn’t be longer than about a week, seeing as i have a country to run. And while I was gone, I would have to appoint someone to rule.” Celestia sighed, pausing to take a drink. “And if you’ve heard anything about the LAST time I left, it took me months to fix everything Blueblood messed up...fat sack of shit….” Celestia mumbled.

“Yes… that’s a memory that no one will ever forget.” I chuckled.

“But, unlike me, you don’t rule over anything, so you don’t have to worry. I hope you have fun on your vacation, Twi!” Celestia said cheerily.

“I’ll tr-”

“Who keeps poking me!?” I asked, looking behind me.

“Twilight? There’s uh...there’s no one behind you..or anywhere near you...except for me…” Celestia said, getting quieter as she went on.

“I don’t even…” I mumbled.

“Don’t worry about it.” Celestia said.

“Yeah I won’t… it’s not like stranger things have happened to me.” I said.

“Hey Twilight,” Celestia whispered, ”Wanna hear a joke?”

“Sure.” I said.

Celestia leaned over to my ear and whispered her joke, causing an immediate blush to come to my face. A second passed, and then Celestia started to laugh.

“Princess!” I said with a slight stammer in my voice. My eyes widened, both caught off guard and utterly surprised by the unexpected dirty joke.

“Ah ha, huh, w-what do you want? We’re at a BAR, Twilight! We can do what we want! And I’m the princess, who’s gonna stop me?” Celestia said.

“I...just… coming from you…” I mumbled.

“Twilight...If you’re going to go on a vacation, you’re going to need to loosen up a bit…” Celestia said seriously.

“Sorry Princess…” I said apologetically, lowering my head.

“And that’s another thing,” Celestia said, “call me Tia! As I said, you’re a princess now, so I don’t mind. That also means you can call Princess Luna just Luna, as she has no formal nickname. Basically, anypony in a position of authority that has become friends with you is okay with that.”

“U- um...wow..th-thanks, uh, T-tia..” I muttered.

“S’nothin.” Celestia said.

We both sat there for a moment, drinking our drinks, a pleasant silence to both of us.

“So, where were you planning on going after here, Twi?” Celestia asked.

“I was...planning to go back to the library and go to sleep, actually.” I said.

“Nonsense!” Celestia said. “you and I shall have a night out on the town, Twilight. I know all the clubs, and also have V.I.P. passes for them.”

“O-oh...well, if you insist…” I said meekly.

“Twilight…” Celestia sighed,”you don’t have to go if you don’t want to..”

“N-no! I do want to go, honest!” I said.

“Hmmm...well, there’s no time like the present!” Celestia downed her drink and motioned the bartender over to pay him. As she did so, I drank my drink, just wondering where we would go.

“C’mon, Twi! Let’s paint the town red!” Celestia said as she walked out.

“A-alright…” I said.

================================================

“Hooolllyy… sshhiitt..that was AWESOME Tia!!” I yelled out drunkenly.

“Oh yeah it… it was!” Celestia agreed.

As we barged into the castle, all the guards looked away as if we weren’t there. We passed a few nobles, who seemed disgusted at me, but as soon as they saw Tia they forced upon themselves fake smiles, praying she hadn’t noticed. We ran down the hallways-knocking over pedestals and suits of armor in the process-before we came upon Tia’s room.

“H-hey Twi?” She said.

“Yeah?”

You wanna spend the night?” She asked.

“Hmmm… Spike is at Rarity’s...sure.” I said.

“YE- I mean, great!” Tia yelled.

“Lemme just...just teleport in some pajam-” I started.

“No need! I have a spare pair, they should fit you!” She said happily.

“Oh...really? Ok then, I suppose you did have tonight all thought out…” I said as she walked to her closet.

“Mm… well I think we’ll be plenty busy at least…” Celestia cooed sensually as she looked through the closet. “Why don’t you go hit the shower before bed… I think we could both use one.”

“Um… okay.” I said with a slow shrug, moving towards the bathroom and heading in. I closed the door and started to undress. Once my clothes were off I turned the shower on, running my hand under the cold water and giving a small shiver as I waited for it to heat up. I stepped in and let out a long and relaxed sigh as the warm water hit my skin. It wasn’t until I had put the shampoo in my hair and washed it out that I heard footsteps entering the room. “Did you need something?” I asked. There was no response, only more footsteps. I stared at the shower curtain for a few moments. Who was in the room? Was it Celestia just playing a joke, or was some pervert trying to see me naked. Hell, I’m drunk, let em look! I tore the curtain open and spread open my arms. “Helloooohhhh my god…” I said, quickly covering myself up as Celestia was staring at me with a look of amusement on her face.

“I see…” She chuckled, raising an eyebrow.

“Princess I’m sorry… I mean… Why are you in here and… why are… you naked?” I asked with a growing hesitation in my voice.

“My castle, my rules.” She said. The only ornament of clothing she had on was a pair of panties that were… um… oh god…

“Something catch your eye?” Celestia said in a calm and sultry tone as her underwear stretched slowly towards me by a large appendage.

“I… wh… um…” I stammered, my face burning as I could only imagine how red it must be.

“Twilight… You’re my faithful student. You should know you can tell me anything that’s on your mind…” She cooed, stepping towards me slowly.

“Penis…” I stated, my entire arm moving up to point at her lower half.

“Yes that’s very observant. I was right to choose you as my faithful student.” She teased with a small laugh.

“Why…” I said, still completely befuddled by the sight of the still growing accessory.

“Mm… Why do birds croak and frogs fly?” Celestia asked.

“Th… what?” I mumbled uncertainly.

“Yes.” Celestia said, grabbing my hand and sliding it into her underwear. My entire body tensed slightly as I felt her throbbing member.

“What are… you doing?” I said, a tone of of bemusement to match the expression on my face.

“Oh Twilight… My most intelligent student. You haven’t dreamed about this?” She whispered. Her soothing tone alone sent shivers down my spine.

“N… no…” I mumbled quietly, my breathing quickening. My body was feeling warmer than usual. I don’t know if it was Celestia’s normally warm aura that she always spreads when she is nearby, or because I’m actually getting turned on.

“Well… you have now.” She said.

“What… do you me- MM!” I let out a muffled yelp as her lips made contact with mine. From the heat of her tongue flooding my mouth as it snaked against mine, to the veiny and rigid length I had now begun to unconsciously stroke, I was lost in absolute ecstasy. There was a snapping sound, shifting my attention to her lower attachment. It had grown so large that the underwear she had on simply tore apart and fell to the floor. My heart pounded as it finally stopped at a full three feet. She moved closer, slipping it between my thighs. My mouth opened wider, my jaw quivering from the arm thick dick throbbing lustfully, needily, mere inches away from my bare pussy.

I gasped loudly as my back was pressed against the wall of the shower, now being lifted up as her arms grasped my legs. I was now between a cock and a hard place as she held me up against the wall. Her towering mass smacked onto my stomach, the head just resting between my breasts. Oh god, I’d die if she put that in me…

“You’ve been slacking Twilight… now you’re going to be a good student, and take your punishment.” Celestia stated loudly. Her cock moved lower and lower as her hips backed up, finally prodding my entrance, which was already soaked by both my own juices and the water from the shower. The shower’s waters now seemed almost ice cold compared to the living embodiment of the sun that was dominating. I was debating with myself at that moment if I actually wanted this. I was turned on… something about the princess commandingly taking charge, ordering me, and punishing me. Like a princess should…

I need to be punished… I need her to tear me in half with the thick horse meat knocking at my front door. I’d never be able to have sex with anyone else ever again. I’d be her most faithful cock sleeve as she shaped my pussy to her needs, only ever able to be used by Princess Celestia. She’d mark me as the biggest cum dumpster in both Ponyville AND Canterlot. This is the role I was born to do… I was born to be hers. I knew from here on that my new home would be to carried around with her shaft inside me at all times, parading me off naked to all the royals and people of Canterlot, dangling from her firm and rock solid cock for the rest of my life.

“Do it… please use me… I need you so much…” I panted, lust boiling in every breath.

“Let’s get you ready for your new position in the castle…” She said, the grin on her face growing. The tip pressed harder against my opening, spreading the lips wide. My already wide eyes grew wider from the surge of agonizing pain flooding every inch of my body. A quarter of her length wasn’t even inside me and I knew It was already too late. My pussy was stretched and ruined. All I could do was sit there as she finished turning me into the mate I was destined to be. It was an honor, no… a privilege, to be this close to a princess, no… A GOD! I was being God’s cum slut… used and molded to her needs, and only hers.

It was only a split second, but I realized that I had been screaming since she pushed the head in. I tried to stop, but couldn’t. All I felt was pain, pain that I knew was necessary. She continued to slide more and more into me, my nethers being sickeningly stretched wider and wider with every thick, veiny inch. It wasn’t until half of it was in that I saw the massive, turgent pair of balls swinging heavily below her broad member, nearly the size of bowling balls, and most likely heavier. A thought raced through my mind, which was surprising that I could think at all due to the immensity of the mixed feelings running through each nerve in my body. I wasn’t just being turned into a her personal dick warmer, I was being bred. I was going to be turned into a breeder for royalty!

At that moment all pain stopped, being replaced with a burning warmth as she stopped sliding into me. My entire body shook and my eyes widened, feeling the tip of her dick press against my cervix, kissing it and drooling pre into my womb. I looked down and was absolutely horrified at how deep she was, and only had half of it inside. I was right earlier… I’m going to die. The horror faded once the realization that there could be no perfect a death than by her glorious and perfect, twitching, awe-inspiring monster of a cock.

Without so much as a warning, she started sawing the first half in and out slowly. My eyes rolled back from the unimaginable pleasure that I was now feeling. What pain I felt before was gone. The only thing I could feel now was the love pole bashing against the barrier between her godly seed and my womb.

“I’m… You’re… killing me…” I gasped, my head slamming back against the wall.

“Oh Twilight… you won’t die. You should know by all your books how pliable your body can be… But…” She grunted, pressing the tip against my cervix and holding it there.

“B… bu...t?” I mumbled shakily.

“I’m going to make sure you break...” She stated, slamming the other half into me, sending the first half straight into my womb and pressing violently against the back of it. I screamed bloody murder as she pulled out until the head was all that was in me, then thrust her entire length back into me. She kept that up, continuously plunging herself in and out. I could see the outline of her dick moving on the surface of my stomach, traveling back and forth as her ridiculous member tore me apart. My mind fogged more each time our hips slapped together until the thought of being her brood mare was all that remained. Tears slid down my face and my tongue lolled out, my breasts bouncing with each pound. I felt her balls swell impossibly large as they slapped noisily against my ass, preparing to seal my fate.

“You’re having fun.” A familiar voice chimed in. My thoughts returned to me and my eyes shot to the doorway, seeing Luna standing there with a smile on her face.

“P… rincess Luna?” I mumbled. She approached the two of us, stepping into the shower and staring at me. She reached down and grabbed Celestia’s balls, gently rolling what she could manage with only one hand around.

“If you want what’s inside here… come to the castle.” Luna said, squeezing the large sack and causing Celestia’s dick to swell with the release she was about to get.

“Wh… we are… in the castle?” I said with a growing confusion in my voice.

“Here it comes!” Celestia shouted.

My eyes shot open and the first thing I noticed was that I was in my bed. “Finally! I’ve been trying to wake you up for an hour.” Spike said. My eyes shifted to Spike, a surge of anger and disappointment hitting me immediately. Was that just a dream? Or was Luna actually trying to tell me something. I guess I should head to the castle to find out… I was so close to the end too. Damn it Spike…

Author's Note

This is a two parter and still has one more chapter to go, so stay tuned!

Chapter 2: A Dream Cum True

“Ugh...what do you need, Spike?” I asked.

“You got a letter from the princess.” Spike said, holding out the letter to me. The emotions almost faded from my expression as the anger and frustration just disappeared.

“From… Celestia?” I asked in a quiet but nervous tone, staring at the letter.

“Actually it’s from both princesses. That’s a first right?” Spike chuckled. My heart skipped a beat and my hand reluctantly took the letter. I stared at it for another few silent moments before slowly opening it. My eyes quickly shifted across the paper and read,

Dear my most faithful student Twilight Sparkle,

Princess Luna and I have a small gift to give you for all the services you have done for not only Ponyville, but Canterlot and the Crystal Empire. Tell your friends you won’t be back for awhile. You deserve a nice vacation, and what better place to relax than with us at the castle? You will not need to bring much, everything will be provided for you. We look forward to spending some time together.

Yours truly, Princess Celestia and Princess Luna.

“What’s it say?”

My chest nearly exploded as the heart inside it jumped a mile. I quickly glanced down at Spike, then back to the letter. “Um well… Celestia and Luna are inviting me to the castle for some… relaxation.” I said, my eyes skimming across the letter again.

“Oh that’s great! We deserve some quiet time after everything that’s happened.” Spike said, his eyes filling with excitement at the news.

“We?” I said, nearly choking on my next breath as I stared at him.

“Yeah it’s a trip for both of us right?” He asked curiously.

“Uh well… I um…” I stammered. If Luna is calling me there because of what she saw in the dream… I couldn’t possibly bring Spike right? But why did Celestia co-sign it? Did Luna tell her too? Oh god…

“Twilight?” Spike said, snapping his fingers. My glance snapped back to him immediately.

“Y-yeah?” I sputtered quickly.

“There’s something on the back.” Spike said, poking the back of the letter. I turned it around and at the bottom it said,

P.S. Spike can come too.

I blinked a few times before closing my eyes and letting out a relaxed sigh, letting the letter fall to the floor as I sank back onto the bed. “Okay maybe it’s not as bad as I’m making it sound…” I said to myself.

“What?” Spike inquired.

“Nothing… just uh… She said not to pack anything so… I guess we can leave at any time.” I said, sitting back up immediately.

“Okay.” Spike shrugged, scratching his head before returning to the previous excitement filled baby dragon that was standing in front of me just a few moments ago.

“Just let me get dressed and I’ll be out in a minute.” I said, waving Spike out. He nodded and hopped out of the room, closing the door behind him. I walked to the closet and started to dress. Just as I was finished putting the last of my clothes on, I heard the barely audible sound of Spike cheering from downstairs. Curious, I walked to the door and started heading to the living room. The front door was wide open and Spike came in shortly after.

“They sent a chariot!” Spike said with a large smile on his face.

“Really?” My eyes widened in complete befuddlement.

“Awesome! I call shotgun.” Spike said, bursting out of the door.

“There’s only two… Nn… okay.” I shrugged, heading to the door to see the medium sized transport waiting for us, Spike already fastened inside and waving to me as I stepped out and towards it. I stepped in and took a seat next to Spike, getting caught off guards as the chariot suddenly shot forwards like a bullet. I braced myself slightly, my body pressed back against the wall before it started to slowly get easier to move, finally becoming effortless. I looked out of the enclosed cabin to notice we were still traveling incredibly fast. It must be magic, I suppose. I’ll have to learn this spell… maybe Celestia can show me how.

“This is gonna be so cool!” Spike said, still as giddy as when I told him.

“I’m sure there’s going to be plenty to keep you busy while we’re there. I think this is going to be a well earned break.” I said with a nod. I leaned back, staring to feel a little excited as well.

“Hey…” Spike started, looking up at me.

“What’s wrong Spike?” I asked.

“Shouldn’t the others be coming too? I mean… they’ve been working just as hard as us.” Spike said. I had to agree, it is a little strange she didn’t send me to get them too.

“Maybe they are.” I shrugged. “Maybe they just got separate chariots.”

Spike thought for a moment before nodding in agreement, returning to kicking his feet that dangled playfully off the seat that just sat barely higher than he was. I guess that makes sense… They all got their own rides to Canterlot. That seems like something Celestia would do… Well actually we’d just usually take the train... but I suppose getting our own personal escorts is a step up! Yeah, yeah… This is going to be incredible.

The wagon landed near the castle entrance, Spike and I stepping out shortly after.

“Come on Spike let’s go find the princesses.” I said, walking into the castle.

“Twilight Sparkle, the princess would like to see you in her chambers. Spike, you can come this way. She wished to see Twilight alone.” A guard said, motioning Spike to follow him.

“Okay uh… See ya later I guess?” Spike said uncertainly as he looked up at me.

“Yeah I guess so.” I nodded. “Have a… good time then.”

“Did I mention you have access to the food court?” The guard said. Spike’s nervousness immediately faded and he walked past the guard.

“See ya later Twilight.” Spike said quickly, disappearing from view around the corner.

I shook my head and smiled, walking slowly down the hall towards Celestia’s room. When I opened the door I saw Celestia sitting at a desk near the edge of the room, working on what looked like official documents… at least, that’s what I got from the symbols and stamps on them. She turned and smiled as she saw me. “Come in Twilight, take a seat anywhere I’ll be finished in a moment.” She said.

I smiled back and walked into the room taking a seat on a nearby chair.

“So how have you been lately?” Celestia asked, sliding another paper to the side and starting on another.

“Um… Pretty good.” I said.

“That’s good to hear.” Celestia said.

“How have you been?” I asked.

“Just fine. Sister and I have been getting ‘caught up’ since you defeated Nightmare Moon.” Celestia said with a quiet laugh.

“That’s great.” I smiled.

“I see you have… Never mind…” Celestia said, pausing her writing for a moment before continuing.

“Hm?” I mumbled, staring at her quizzically.

“It’s nothing… We’ll speak of this later.” Celestia said, waving it off dismissively.

“Okay…” I said, still a little curious at what she was going to say.

“How has Spike and your friends been?” She inquired.

“They’ve been great.” I said.

“That’s nice.” Celestia mumbled.

“What are those papers for?” I asked curiously.

“Just some formalities I’m clearing up, nothing you need to worry about.” Celestia said as she slid the last paper off to the side. She turned, smiling as she gave me her full attention.

“Okay.” I smiled back, “So why did you want me in here alone?”

“Oh I hardly think we’ll be alone for much longer.” Celestia laughed as she gazed towards the door in time for Luna to walk in.

“Oh you’re here, we’ve been waiting.” Luna smiled.

I smiled wider, the presence of both princesses only adding to the excitement of why I was summoned, “Hi Luna.” I waved.

“It’s good to see another friendly face around here.” Luna said, taking a seat next to Twilight.

“And I’m happy to be here.” I said.

“Come sister.” Luna said, motioning Celestia over.

Celestia nodded and stood up, quickly transferring to the other side of Twilight and sitting down. “We’re both happy you received both our messages.” Celestia said.

“Both messages?” I asked.

Celestia and Luna both seemed to blush slightly. “Yes…” Luna nodded.

“I only recieved the one today…” I said uncertainly.

“One today and, one last night…” Luna said, clearing her throat. “In your um… dream.”

I silently chewed on my lip and I could feel my face heat up.

“I think I may have… overdone it.” Luna said in a quieter tone as she refused to look me in the eyes.

“Um… Yeah… I… um…” I mumbled. “I wouldn’t… say… that…”

Celestia and Luna turned to me, staring with surprise in their widened eyes.

I looked back at them, still chewing on my lip.

“It’s not as if that dream was just created by me. I… took it from your own head.” Luna said, her tone that of embarrassment and reluctance.

“I didn’t see what happened but my sister described in detail what happened… ‘great’ detail.” Celestia said.

“Oh… O… Okay…” I mumbled quietly.

“I’m sorry…” Luna said.

“There’s nothing to apologize for, you did nothing wrong. If Twilight says she enjoyed it then she enjoyed being impaled on my three foot long cock.” Celestia said with her usual princess confidence.

“Wh…” I mumbled in a mix of burning curiosity and disbelief.

“Sister!” Luna said quickly, the shock clear in her voice.

“I’m almost curious at how often you dream about that.” Celestia said, her eyes locking with mine.

I remained silent as my face grew burning hot.

Celestia put a hand to her mouth and let out a quiet laugh as she crossed one leg over the other. “I’m sure you have many questions as to why I’ve called you here. Although that thought may not be on your mind for much longer.” She said.

“Oh so we’re…” Luna started, her posture changing to a more sturdy and straight one.

“Of course, why else would she be here?” Celestia said.

“So that’s why you wanted me to come…” I said.

“Well I think we’ll all be doing that by the end. Several times.” Celestia teased.

I silently stared at her.

“I hope you know you’re not being forced into anything.” Luna said reassuringly.

“We would dream of putting you in an... ‘uncomfortable position’.” Celestia said with another laugh.

“Um… A… Alright.” I stammered.

“I assume you wonder why I said what I said in the dream.” Luna started, staring down at Celestia’s crotch, her face burning a little brighter red.

“Y… yeah… I am…” I nodded quickly.

There was a minute of dead silence before Celestia’s eyes wandered to my other side. I turned and saw the bulge in Luna’s outfit, traveling up her shirt slowly.

“Oh… My…” I mumbled as I watched it.

“That’s where it started but…” Luna said. My eyes snapped up to her face and saw she was motioning to her sister. I looked and saw the same scene with Celestia, except her growing mast had slipped over, rather than under her garments and was sliding up towards her chest in full view.

“But that’s not where it ended.” Celestia finished.

“O… Oh…” I mumbled again, still utterly shocked by what was going on. A shiver went down my spine as I glanced back to Luna and saw she was undressing, revealing the thick shaft that finally stopped growing just above her breasts.

I stared wide-eyed as my mouth fell open.

“Of course mine isn’t as ‘vast’ as my sister’s but that’s to be expected.” Celestia said. My attention shifted to her and saw she had already undressed, her cock growing to full between her breasts, stopping and continuing to throb squished in the two love pillows that stood larger than any other in the room.

I stared in awe at both their naked bodies.

“Enjoying the view?” Celestia said, an eyebrow raised to match the amused grin stapled to her face.

My cheeks heated up even more as I gave a small nod.

“Well since we’re having show and tell, why don’t you show us what you’ve brought and tell the class about it.” Celestia said, her grin growing.

“Unless you don’t want to. Then of course you can feel free to just watch and see what we brought. Why don’t we show them off sister?” Luna suggested.

“That sounds perfect.” Celestia smiled, crawling further up the bed and leaning back against the headboard. Luna got onto her hands and knees, crawling towards her older sister and wrapping her hands around the two foot long rod that her sister wore as the three footer dangled and bobbed under Luna’s crotch. Her mouth opened and drifted closer to the flat and drooling horse cock attached to Celestia’s nethers.

As Luna took the tip into her mouth, the entire room was flooded by a wave of tingly warmth. I started to breathe heavier from the scene unfolding. I watched as the Celestia’s baseball sized testicales slowly filled to match the duo of basketballs Luna was dribbling below her thick monster of a dick.

“Why… are they so… swollen?” I asked.

“I had assumed Luna’s was due to her time on the nngh... moon, without any release, but then mine started to AH! do the same thing...” Celestia said, seeming to struggle to get the words out as Luna’s ferocity increased, bobbing her head up and down in long and swift motions.

“And… how… did she get it?” I questioned.

“It was a gift fr… from Nightmare Moon. Ahnn…” Celestia groaned.

“And how did you get one?” I asked.

“I’ll show you, hrrghn, later…” Celestia said.

I slowly nodded as I watched Luna.

“Mm… much better than last time Luna.” Celestia said softly.

Luna closed her eyes tightly as she took her sister’s length into her throat with each bob.

I continued to watch, my eyes drawn back to Celestia’s testicels as the swayed heavily underneath her.

Celestia put her hands on the back of Luna’s head and held her to the hilt. Luna frantically struggled under her sister’s grip. “Come now Luna, we’ve practiced this.” She said calmly as her sack groaned with the load it was about to release..

I opened my mouth up and started breathing more heavily as I watched with a building anticipation.

Luna started shaking as her stomach slowly bulged out, choking and sputtering as Celestia’s dick bulge with every shot. “Just a little longer, we’ve counted how long it lasts before.” Celestia said softly as she rubbed her hand through Luna’s hair.

“H… How long does it last?” I asked curiously.

“About a minute.” Celestia sighed blissfully.

Luna put a hand on Celestia’s stomach, almost as if for mercy as her stomach pressed against the bed.

“Um…” I mumbled.

“She’ll be fine Twilight. She’s getting better every time.” Celestia laughed.

“Okay…” I said, still a little uncertain.

After a few more moments Luna was released and she sat dead still on the bed, staring at the wall in a daze.

I looked at Luna, waiting intently.

Luna shook a little before she started upchucking all the cum Celestia forced into her stomach. “I told you to relax. You held it a whole five minutes last time and now that Twilight is here you’re too tense.” Celestia sighed.

“I’m sorry… I’m s- BLGHPH!” Luna blurted as more came out. She fell to her hands and knees onto the floor as she continued to force more out.

I chewed on my lip a little and looked down at the gallons of cum that was all over the floor.

“So Twilight.” Celestia said, turning her attention to me.

“Hm?” I asked, quickly looking up at her.

“Enjoy the show?” Celestia asked playfully.

I blushed and slowly nodded.

“Twilight.” Celestia stated.

“Yes?” I asked quickly.

“Sit.” Celestia said, patting the spot next to her as her shaft went limp slowly, drooling leftovers onto the bed in front of her.

I stood up and quickly sat down beside her.

“Any questions?” Celestia asked.

“Yes… How did you get yours?” I asked.

“I said I’d tell you that later.” Celestia said, staring at me.

“Oh…” I said.

“Any other questions?” Celestia asked.

I scratched my chin as I thought.

“Maybe you’d like to make some observations?” Celestia suggested. My eyes wandered down to the princess’ re-hardening length.

“Yeah…” I nodded.

“Mm just like my prized student to study.” Celestia laughed, spreading her legs open.

I reached down and wrapped my hand around her dick, it felt so good to be holding it.

“Mm…” Celestia mumbled, closing her eyes.

I just held it for a few moments getting ready for what I had to do. After those few moments had passed I slowly and teasingly ran my hand from base to tip, running each of my fingers over the head.

A smile spread across Celestia’s face as she opened her eyes, her warm gaze hitting my body as she watched.

I smiled back as I wrapped my other hand around her balls, massaging and squeezing as I stroked her throbbing mass with my other.

“You’re obviously not a novice at this.” Celestia teased, her chest heaving faster with every stroke.

I blushed a little and started stroking a little faster. I carefully kneaded her balls together as I massaged every inch of them both. I could feel the cum churning and building in them the more I stroked her length.

“Very… very good… yes.” Celestia moaned, slowly thrusting her hips in my grasp.

I switched both my hands onto her shaft, using one to constantly massage her tip as the other stroked her other two feet of meat.

Luna stood up groggily, her stomach back to normal as she turned and stared at the two of us. “Oh you’re done. Come, take a seat.” Celestia said, patting the spot next to her. Luna walked over and sat down next to Celestia, staring at me.

I was starting to get a little anxious as I stroked every part of Celestia’s length. My hands had started to get sweaty and lubed it up making every stroke faster then the last.

“You look like you’re getting close sister.” Luna said, noticing the twitches of Celestia’s shaft.

“Mm yes… Nn very close.” Celestia grunted.

I began to use both my hands to stroke her shaft, a new fiery curiosity filling me.

Celestia’s head fell back as her shaft bulged and flared out, spewing her sudden orgasm into the air as she sighed peacefully.

“Oh sister! You’re going to make a mess.” Luna said as she watched the fountain of cum rain down onto both her, me, and the bed.

“I know Luna. The guards will clean it later.” Celestia said, her shaft continuously shooting more with every twitch.

I scooped some off the bed and licked it off my hand. I swished the salty substance around in my mouth. It was a few moments later that I realized that both princesses were staring at me. I swallowed the cum and gave a small smile.

Celestia’s shaft finally stopped it’s spray. Her and Luna gently pulled me closer and started to take my clothes off.

I helped remove all of my clothing and looked at the two of them, almost panting as my eyes moved down to their dicks.

I shivered a little as I was pulled into Celestia’s lap, her fingers drifting down to my already slopping slit and teasing themselves against it.

I moaned and started to pant, needily grinding my slit against her fingers.

“Oh my… she really is a slut.” Luna said softly. I felt her breasts press against my back as she came up from behind and started kissing my neck.

“Only… For you two…” I moaned. My eyes widened, a surge of fear hitting me as I felt something prodding my ass.

“Yes, why don’t we show Twilight her new ‘position’ in the castle.” Celestia chuckled, teasing her own shaft to my own pussy entrance.

I held my breath in anticipation for what was going to happen next.

“Why don’t you let me start first Luna. Make it better for her.” Celestia said, glancing at her sister.

“Yes sister.” Luna nodded. I felt my two lower cheeks press around Luna’s shaft, sliding back and forth as she waited.

“Now Twilight…” Celestia said, gripping my hips as her tip pressed a little harder to my cunt.

“Y… Yes…” I mumbled.

Celestia leaned closer, her hot breath running down my neck as she whispered, “You won’t die, don’t worry.”

I started to pant a little harder and I could feel myself tighten a little more. A gasp escaped my mouth as I felt my lower lips stretching wide, knowing she had started to push into me. I closed my eyes and started to push down to meet her.

“Just a little more… and your new role will be inevitable.” Celestia whispered, nipping at my ear and kissing my neck.

I moaned and added a little more force as I pushed down, trying desperately to meet her hips and have every last inch of her meat inside of me.

Celestia’s grip on my hips tightened and impaled me onto the last of her length violently, holding my hips to hers. “There we go…” She sighed.

My mouth fell open and I shivered with every throb of her dick. “Ohh…” I mumbled as I tightened even more around her.

Celestia, without warning, started bouncing me up roughly, gravity slamming me down combined with the strength she had in her hands, slapping my hips to hers repeatedly.

I screamed loudly in a mixture of pleasure and pain, both overwhelming every other sense I had.

Celestia smiled as she undoubtedly bathed in the feelings surging through me, a slow and agonizing warmth starting to radiate through me as the pain started to fade. “Only a little longer and you’ll be ours.” She said softly, the speed of her thrusts gaining speed and each slam of our hips only getting louder.

I continued to moan loudly and my body started to quiver as an orgasm rapidly built up inside of me. After a few more thrusts it tore through causing me to scream loudly, my juices further coating Celestia’s shaft and lap.

“She’s ready sister.” Celestia said. Without warning I felt something the size of a tree trunk force itself into my ass.

I screamed in pain and my entire body tensed up, tightening to a choke hold around both invading members.

“She’s so tight sister!” Luna groaned. I felt two sets of hands on my hips now as both their shafts began to slide in and out of my two sickeningly stretched holes.

“We will break her in soon enough. At this rate it won’t be long.” Celestia said reassuringly. Luna’s hands slid up my sides and started to grope my breasts, twisting and squeezing them as Celestia’s magic tugged at my nipples.

I screamed again this time in pleasure as my head fell back. An alien feeling hit me as I felt her magic push past my nipples and flood into my breasts, heating up and massaging every inch of them from inside to out. Luna’s magic encompassed my waist, a cold tingling spreading across her magic’s touch as a tightness enveloped my clit and clamped down on it. I moaned loudly and my mouth again fell open. I felt another orgasm violently rip through me and my entire body quaked in pleasure.

Another shiver took my body as I felt their flesh spread across my body as they sandwiched my body between the icy touch of Luna at my backside, and the warm burning heat of the sun in front of me.

“Yeessshhh!!” I slurred as my body was continuously filled with incredible pleasure, each thrust from either of them brought me to a height I hadn’t ever felt before.

“Ohhh sister, I don’t think I can hold it!” Luna moaned loudly.

“Don’t try Luna. Let it all out, she’s not going anywhere. We have plenty of time.” Celestia said.

I felt my back hole stretch further as Luna prepared to flood me. If hers was anything like her sister, I would be turned into their own personal cum balloon.

I felt my body go numb as one more earth shattering orgasm broke through me.

A cold sensation flooded into my as I felt Luna’s seed pour endlessly into me. “That’s it Luna, fill her till she pops. Nothing we can’t fix in the end…” Celestia said, her searing length now pounding at my cervix roughly with every thrust.

I shivered as the pleasure of having so much seed pumped into me, filled every nerve in my body my pussy now just turned into a waterfall of fluids as my juices continuously poured out.

“Ohhh sister! It won’t stop…” Luna moaned. A snowballing feeling entered my stomach as it started to bloat out slowly.

“Mm It never does.” Celestia laughed. “Let her have it, you’ll be surprised what my faithful cum dumpster has survived.”

I felt drool begin to leak out of my mouth as the pleasure just continued to build in me.

“I feel yours coming sister…” Luna panted, slowly starting to thrust again and ignoring her still cum-pumping shaft.

“Yes I’m almost there, just a little longer.” Celestia said softly, my canals already flooded with her copious pre, now beginning to seep into my womb and light my entire body aflame, mixing with the ice that had already taken hold inside me and continued to build with each twitching explosion of Luna’s mass.

I shivered and quaked as I felt orgasm after orgasm tear through my body.

Two shrill but pleasure filled cries mixed throughout the room as I felt the thrusts halt suddenly, hilted by both princesses, now sitting on both their massive sacks as I felt them start to swell, churning as they had hit the point of no return.

“Here it comes!” Celestia shouted.

My mind blanked as the mind numbing feeling of having both their seeds in me took over.

A boiling feeling flooded my womb as it was filled in an instant, along with another chill of frozen bliss invading my backside from a second lunar orgasm.

“Ohhh yes.” Celestia sighed blissfully as shot after shot poured past my cervix. “Just relax and take it all.”

My stomach started to press against Celestia’s as it surged out faster from the double orgasm filling my holes. I shook as the heat inside me only grew, mixing with the mind numbing cold of the moon mixing with the agonizingly incinerating heat of the sun. “Oh god sister! I feel yours taking!” Luna moaned loudly.

“Yes, it’s only a matter of time now.” Celestia said softly as she pressed her lips to mine.

I melted into the kiss and my eyes shut tightly.

A sudden drowsiness hit me, apparently being noticed immediately by both princesses. “Shhh… just sleep now.” Celestia said, pulling away from the kiss and caringly running her hand through my hair. I felt both twitching lengths start to grow again as their balls churned and stirred with another oncoming orgasm.

“Sister… I have no idea what will happen if it’s in both holes…” Luna started.

“I’m sure it won’t be much different.” Celestia laughed.

I felt my entire body go limp as I slipped into the black grasp of unconsciousness.

A conversation between the two princesses started to wake me up.

“It seems you were wrong.” Luna said.

“Yes I can see that sister.” Celestia said.

“What does this mean?” Luna asked.

“I believe it means we celebrate.” Celestia chuckled.

“Huh…” I mumbled groggily.

“Now Twilight… just take it easy.” Luna started.

“Did something else happen?” I asked.

“Not as we had planned… but yes something ‘else’ happened.” Celestia said.

“What happened?” I asked.

“I told you I would say how I gained my new appendage, and it was when Luna and I had ‘fun’ together for the first time since her return.” Celestia said.

“Oh…” I said quietly. A strange sensation hit my crotch, feeling something heavy resting where my slit normally is. I glanced down to notice that I had grown a massive cock. “Oh… My…” I mumbled, my eyes widening.

“But that’s only half of the surprises.” Luna said, seeming to be entranced by something other than my new sizable package.

“What else did I grow?” I asked, my eyes not leaving my cock. I felt a strange itch on my back. I reached back to scratch it and stopped when I hit something unusual, covered in feathers I think? After a few moments the stunning realization hit me. “I… I have… Wings!?!” I almost shouted.

“I told you.” Luna said.

“You did not tell me anything, no one expected this.” Celestia said, staring at Luna.

“We could have gotten it out before…” Luna started.

“I wasn’t going to let you use the plunger again.” Celestia stated.

“It was a split second decision and you looked like you were going to explode!” Luna said defensively.

“That’s no excuse.” Celestia huffed.

“It was clean...” Luna said.

“I… What?” I questioned, looking at Luna.

“Nothing. How are you feeling?” Celestia asked, regaining my attention.

“Great!” I said.

“Oh.” Celestia and Luna said.

“What?” I asked.

“Nothing.” They both said.

I stared at them curiously for a second before my attention was drawn back to both my new wings and dick. “I still can’t believe that these are real…” I said to myself as I grabbed my one wing.

“Yes, but we’re happy. You know what this means right?” Luna asked.

“I believe I do sister.” Celestia laughed.

“What?” I asked quickly.

“It seems you have TWO new ‘positions’ now.” Celestia teased.

“You’re a princess!” Luna smiled.

My face blanked.

“Indeed. But I think the formalities of this process can be delayed until you are used to the idea.” Celestia said.

“I’m… A princess now…” I said.

“Yes!” Luna said happily, hugging me tightly and giggling.

“That’s great!” I smiled as I hugged her back, letting out a couple excited giggles of my own.

“I suppose you’ll want to tell your friends. Take your time, go home, relax. We’ll inform you when you are needed back at Canterlot.” Celestia said, her warm smile radiating as usual as she joined in the hug.

My smile grew a little, “That sounds like a great idea…” I said.

One Week Later:

My eyes followed the tip of the pen as I wrote in my journal, cataloging everything that happened in the past week. The bustling of people and animals barely buzzing through the closed window to my treehouse, bringing a smile as I glanced out at the busy streets. The effects of my transformation are still unknown to me, but I can assume that whatever is in my new appendage is the same as what caused Celestia’s transformation, and mine as well. I will have to gain a sample to study it further.

“Hey egghead whatcha writing?” Dash’s voice chimed in, nearly making me jump from my seat as my wings instinctively shot out to fly away. Dash stumbled back from the sudden extensions and caught herself on my bed.

“Rainbow Dash!” I shouted, standing up and turning to face her.

“What?” Dash laughed.

“You can’t sneak up on people like that, especially in their own homes! How did you even get in here?” I questioned.

“You never lock your door. I’m surprised you don’t get robbed on a daily basis.” Dash said.

“What do you want? I’m busy.” I sighed, taking a seat again and staring down at what I already had written.

“Oh what… I can’t visit my friend now that she’s a princess?” Dash said, a sudden arm wrapping around my shoulders and pulling me against her.

“I doubt that y-” I cut myself off, staring at the chest that Dash was holding me against. Her breasts are very large… why haven’t I noticed that before? And why do I care so much? They look so good… I just want t-

“Twi? You okay there?” Dash asked, snapping me out of my trance.

“Huh? Yeah uh… I’m fine. Just let me finish this alright?” I said, my face reddening as I turned back to the book.

“Alright.” Dash shrugged, turning and heading towards the stairs out of my room.

I feel weird, really weird… I glanced down and saw the bulge in my pants as it crept down, sliding towards my left foot and filling the pant leg to the point where I thought it might tear at the seams. It was at that moment that all I could think of was Rainbow Dash, my stiffening length only growing harder at the thoughts of what I wanted to do to her. I gripped the table tightly as a tearing sound echoed throughout the room, my pants utterly shredding as the monster inside started to grow to full. My clothes tore and a warms filled the sack that I still hadn’t gotten used to as it bulged outward with what I could only imagine were gallons of fresh seed to paint the inside of some unsuspecting pussy.

My shaft nearly slapped my in the face as it bounced free, bobbing back and forth as I stared at it. You know… this has only been tested on a unicorn and an alicorn. Who knows the effects it could have on an earth pony or… or a pegasus.

“Hey Dash! Could I talk to you for a moment?” I called, my throbbing shaft seeming to grow further as the wicked thoughts stormed through my mind. This was going to be a fun night… For um… for science I mean. Yeah, science.

Author's Note

I hope you enjoyed, and sorry for the unusually long wait. Science!!